Amancio Ortega dropped out of school at 14 to begin running errands for local shopkeepers.
Francois Pinault, founder of the luxury group Kering, dropped out of school when he was 11 years old to work in his father's lumber mill.
Jay-Z attended the George Westinghouse Career and Technical Education High School but never graduated.
Jay-Z went on to become hip-hop's first billionaire in June 2019; per Forbes, he's currently worth about $1 billion. His fortune comes from his stakes in liquor brands, art, real estate, and in companies such as Uber, according to Forbes.
While he personally managed to find immense success after dropping out of high school, the rapper encourages people to take their education seriously.
"Education is super important," Jay-Z said in a press conference for a performance at Carnegie Hall. "I don't have a high school diploma or a college diploma, but still for me to articulate, I had to have some form of schooling to articulate my thoughts."
Source: Insider, Forbes, Mic, Syracuse.com
Richard Branson dropped out of high school when he was only 16 after struggling with dyslexia.
Soon after quitting school, Branson founded his first business, a student magazine, and eventually a mail-order record company. which later became the Virgin Records music label. Today, his company, Virgin Group, oversees nearly 500 subsidiaries. Branson himself has a net worth of $3.9 billion.
Source: Entrepreneur, Business Insider, Forbes, Biography.com